The founder of real-estate merchant bank Island Capital Group bought the Neoclassical limestone home in 2007.

Real-estate executive Andrew Farkas is putting his Upper East Side townhouse on the market for $42.5 million, according to listing agents Deborah Grubman and Cathy Franklin of the Corcoran Group.

Located on 73rd Street between Fifth and Madison Avenues, the Neoclassical limestone home was built around 1900, the agents said. The five-story house measures about 10,700 square feet with five bedrooms plus staff quarters. The dining room, which leads out to a south-facing garden, has one of 10 working fireplaces in the house. There are also three kitchens: the main kitchen, a catering kitchen in the basement and a kitchen off the landscaped roof terrace, which has Central Park views.

Mr. Farkas lives in the house and spent about three years extensively renovating it, the agents said. He purchased the property in 2007 for $23 million, according to public records. The agents said he is selling for personal reasons.

Mr. Farkas, founder of real estate merchant bank Island Capital Group, has built several empires in brokerage and real estate services over the years. He couldn’t be reached for comment.